<SCRIPT LANGUAGE="JavaScript1.1">
function right(e) {
if (event.button == 2 || event.button == 3) {
alert("Sorry, you do not have permission to right click.");
return false;
}
return true;
}

document.onmousedown=right;
document.onmouseup=right;

window.onmousedown=right;
window.onmouseup=right;
// End -->
</script>